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SUNRPC: Move the bound cred to struct rpc_rqst

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This will allow us to save the original generic cred in rpc_message, so
that if we migrate from one server to another, we can generate a new bound
cred without having to punt back to the NFS layer.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2010-07-31 14:29:08 -04:00
parent 8572b8e2e3
commit a17c2153d2
12 changed files with 92 additions and 96 deletions
Download patch file Download diff file Expand all files Collapse all files

43
net/sunrpc/auth.c
View file

@ -477,9 +477,10 @@ rpcauth_bind_new_cred(struct rpc_task *task, int lookupflags)
return rpcauth_lookupcred(auth, lookupflags);
}
int
static int
rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_cred *new;
int lookupflags = 0;
@ -493,9 +494,9 @@ rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
new = rpcauth_bind_new_cred(task, lookupflags);
if (IS_ERR(new))
return PTR_ERR(new);
if (task->tk_msg.rpc_cred != NULL)
put_rpccred(task->tk_msg.rpc_cred);
task->tk_msg.rpc_cred = new;
if (req->rq_cred != NULL)
put_rpccred(req->rq_cred);
req->rq_cred = new;
return 0;
}
@ -535,22 +536,10 @@ out_nodestroy:
}
EXPORT_SYMBOL_GPL(put_rpccred);
void
rpcauth_unbindcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
dprintk("RPC: %5u releasing %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
put_rpccred(cred);
task->tk_msg.rpc_cred = NULL;
}
__be32 *
rpcauth_marshcred(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u marshaling %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -561,7 +550,7 @@ rpcauth_marshcred(struct rpc_task *task, __be32 *p)
__be32 *
rpcauth_checkverf(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u validating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -573,7 +562,7 @@ int
rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to wrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@ -587,7 +576,7 @@ int
rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@ -601,13 +590,21 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
int
rpcauth_refreshcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
int err;
cred = task->tk_rqstp->rq_cred;
if (cred == NULL) {
err = rpcauth_bindcred(task, task->tk_msg.rpc_cred, task->tk_flags);
if (err < 0)
goto out;
cred = task->tk_rqstp->rq_cred;
};
dprintk("RPC: %5u refreshing %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
err = cred->cr_ops->crrefresh(task);
out:
if (err < 0)
task->tk_status = err;
return err;
@ -616,7 +613,7 @@ rpcauth_refreshcred(struct rpc_task *task)
void
rpcauth_invalcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u invalidating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -627,7 +624,7 @@ rpcauth_invalcred(struct rpc_task *task)
int
rpcauth_uptodatecred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
return cred == NULL ||
test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0;